Results 71 to 80 of about 16,478 (248)

Failure characteristics and the energy criterion of rock with a through‐going joint under true‐triaxial unloading conditions: Insights from the DEM model

Deep Underground Science and Engineering, EarlyView.
The rock failure mode is significantly influenced by the contributing factors, such as the joint inclination, the initial confining pressure, and the unloading point. We found six typical rock failure modes after a large number of numerical tests. Abstract Excavation unloading damages rock masses, with preferential failure along geological defects in ...
Fei Liu, Changhui Liang, Sijia Liu, Yongjun Zhang, Luo Wang   +4 more
wiley   +1 more source

Dissipation of Energy and Generation of Pore Pressure in Load-Controlled and Displacement-Controlled Cyclic Tests

Geotechnics
The amount of energy dissipated in the soil during cyclic loading controls the amount of pore pressure generated under that loading. Because of this, the normalized dissipated energy per unit volume is the basis for both pore pressure generation models ...
Carmine P. Polito, Zhuoyue Zhang, Henry H. M. Moldenhauer   +2 more
doaj   +1 more source

Interpreting Measurements of Small Strain Elastic Shear Modulus under Unsaturated Conditions [PDF]

, 2016
Bender element testing of unsaturated isotropically compacted speswhite kaolin samples was used to investigate the variation of small strain elastic shear modulus G under unsaturated conditions. Testing was performed in a suction-controlled triaxial cell
Hasan, Ahmed Mohammed, Wheeler, Simon
core   +2 more sources

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Experimental Study on Strength Characteristics of Overconsolidated Gassy Clay

Journal of Marine Science and Engineering
Gassy clay, commonly encountered in coastal areas as overconsolidated deposits, demonstrates distinct mechanical properties posing risks for submarine geohazards and engineering stability. Consolidated undrained triaxial tests combined with cyclic simple
Tao Liu, Longfei Zhu, Yan Zhang, Chengrong Qing, Yuanzhe Zhan, Chaonan Zhu, Jiayang Jia   +6 more
doaj   +1 more source

Study on the mechanical properties of unloading damaged sandstone under cyclic loading and unloading

Scientific Reports, 2023
To reveal the mechanical properties of rocks under stress disturbance and unloading confining pressure, conventional triaxial compression tests, triaxial compression tests on unloading damaged sandstone, and cyclic loading and unloading tests on ...
Hengbin Zhang, Lehua Wang, Jianlin Li, Huafeng Deng, Xiaoliang Xu   +4 more
doaj   +1 more source

Portuguese unbound granular materials characterisation using cyclic triaxial tests

Proceedings of the Institution of Civil Engineers - Transport, 2012
Crushed materials with extensive granulometry – unbound granular materials (UGM) – are often used as unbound granular layers of road pavements, namely as granular sub-base and base. In spite of several studies having already been undertaken, the behaviour of these materials on pavement layers has not been sufficiently characterised, especially due to ...
Rosa P. Conceição Luzia, Luís G. de Picado Santos, José M. Coelho das Neves, Dinis Correia Gardete   +3 more
openaire   +2 more sources

Macroscopic model with anisotropy based on micro-macro informations [PDF]

, 2014
Physical experiments can characterize the elastic response of granular materials in terms of macroscopic state-variables, namely volume (packing) fraction and stress, while the microstructure is not accessible and thus neglected.
Kumar, Nishant, Luding, Stefan, Magnanimo, Vanessa   +2 more
core   +5 more sources

Analytical stress solution framework for lined compressed air energy storage chambers and its application to safe burial depth determination and supporting effectiveness evaluation

Deep Underground Science and Engineering, EarlyView.
An analytical framework delivers a closed‐form stress solution for lined compressed air energy storage chambers, enabling the determination of the minimum safe burial depth. The solution quantitatively evaluates lining support effectiveness, offering a reliable tool for chamber design and optimization.
Zeyuan Sun, Cheng Zhao, Jinquan Xing, Qinyuan Luo   +3 more
wiley   +1 more source

A review on the Mullins effect [PDF]

, 2009
The Mullins’ effect remains a major challenge in order to provide good mechanical modeling of the complex behavior of industrial rubber materials. It’s been forty years since Mullins [1] wrote his review on the phenomenon and still no general agreement ...
DIANI, Julie, FAYOLLE, Bruno, GILORMINI, Pierre   +2 more
core   +3 more sources